Who produced Audi and do they really own VW?

it's the other way around. VW owns Audi.

Audi is one of Germany’s oldest established car manufacturers. Since 1932 the Audi emblem was the ‘four rings’, which stand for its amalgamation with DKW, Horch and Wanderer to form Auto Union AG in Chemnitz, which then adopted this badge. It supplied the widest range of passenger vehicles that German business could offer in the 1930s – from motorcycle to luxury saloon.

NSU
NSU started motorcycle production in 1901 and started to build cars five years later

Horch
Horch cars had been fitted Cologne since 1900, in Reichenbach since 1902 and in Zwickau since 1904.

DKW
In 1907 Jörgen Skafte Rasmussen started a company in Zschopau to make device and fittings.

Audi
Audi cars, which had been fitted Zwickau since 1910, were regarded from the start as theoretically avant garde midsize models

Wanderer
The 4th ring referred to the Wanderer car division, which also joined the new Auto Union AG in 1932.
DKW started to enter for road races in 1921. In 1925 a small racing department headed by chief designer Hermann Weber was set up.

In April 1999, Audi and VW reached an agreement on the delivery of vehicles in totally knocked down CKD form to Thailand. The car parts kits supplied by Audi are then assembled in Thailand.

If you want to find who create Audi look at

No they do not own VW. it is just a partenership to develop new technologies. with VW they have Bugatti and other car makers. VW is a big family.